test_ast.py 文件源码

def test_compare(self):
        left = ast.Name("x", ast.Load())
        comp = ast.Compare(left, [ast.In()], [])
        self.expr(comp, "no comparators")
        comp = ast.Compare(left, [ast.In()], [ast.Num(4), ast.Num(5)])
        self.expr(comp, "different number of comparators and operands")
        comp = ast.Compare(ast.Num("blah"), [ast.In()], [left])
        self.expr(comp, "non-numeric", exc=TypeError)
        comp = ast.Compare(left, [ast.In()], [ast.Num("blah")])
        self.expr(comp, "non-numeric", exc=TypeError)